Blowpipe and bunsen burner.



No.- 820,69.l PATENTED MAY 15, 1906.

JL. L. YOUNG. BLOWPIPE AND BUNSEN BURNER.

APPLICATION IILEDNOV. 15, 1904.

Anunzw. av GRAHAM co.. Pnu'mluwoummfns. wlsmnsro. u. t;

UNITED STATES PATENT OFFIOE.

BLOWPIPE AND BUNSEN BURNER.

Specification of Letters Patent.

Patented May 15, 190e.

Application iled November 15, 1904. Serial No. 232,862.

To a/ZZ whom, it may concern.-

Be it known that I, J LOWE YOUNG, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Blowpipes and Bunsen Burners, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention consists in the construction of a blowpipe and Bunsen burner, and particularly in the construction, arrangement, and combination of the various parts, as more fully hereinafter described, and particularly pointed out in the claims, whereby I may attain in the same apparatus either the ordinary heating Bunsen flame or a blow ipe.

In the drawings, Figure 1 is a side e evation of my improved device, showing a small Crucible supported above the burner-nozzle as in position for use. Fig. 2 is a vertical central longitudinal section on Fig. 1 with the Crucible omitted. Fig. 3 is a side elevation of the base. Fig. 4 is an enlarged section through the top of the blast-pipe for producing the blowpipe effect.

In the construction which I have herein shown A is a base, upon which is a central lug B.

C is a hinged standard bifurcated to embrace'the lug B and pivoted on a pivot-pin D, passing through the lug and through the furcations. E is a set-screw for locking the standard at any desired angle to the base. The top of the standard C is provided with the screw-threaded projection F, to which is secured a burner-tube G. This tube has upon it a shoulder a, and above the shoulder are the apertures b. Surrounding the tube and resting on the shoulder a is the sleeve H, having complementary apertures c to the apertures b. The upper end of the tube G is preferably tapered, as shown, at I.

At the base of the tube G, I have provided a gas-inlet nipple J, having a plug-valve K for controlling the admission of gas therethrough and constructed at its outer end to receive an ordinary rubber tube to supply the gas thereto from any suitable source. This nipple has an extension L projecting within the tube G, and in the upper face of this extension is a port M of sufficient length to produce a vertical jet of gas within the tube when the valve K is opened. This gasjet is below Athe air-port b.

To use the device as a Bunsen burner, the

valve K being open, the sleeve H turned so that the ports b and c are in registration, the jet of gas discharged upward through the port M will draw air in through these ports and commingle therewith to make the ordinary Bunsen ilame, which will be discharged from the top. In this case the flame may be used to heat the Crucible N, supported on the frame N and connected to a sleeve O, which fits about the upper tapered end of the tube G.

In the standard C is a nipple P, having a passageway therethrough which registers with a passage d in the standard. This passage d extends up through the upper end of the standard, and in it is secured in any suitable manner a tube Q, which extends centrally of the tube G to at or near the upper end thereof. At its upper end I preferably provide it with the plug R, having a jet opening S therethrough. The nipple P is provided with a valve T for controlling the admission of air therethrough and is suitably shaped at its outer end to receive a supplypipe from any suitable source of air under pressure.v

When the device is to be used as a blowpipe, the valve K is'opened, and also the valve T, and the sleeve H is turned so as to close the ports b in the tube G. The gas entering in the tube G will be forcibly blown in a jet by the air under pressure issuing from the j et-opening Sin the tube Q and mingling with the air will produce a blowpipe eiiect at the mouth of the tube G. This blowpipe can be turned at any desired angle of the base and locked in its adjusted position by means of the set-screw E.

What I Claim as my invention is- 1. The combination of a base, a tubular burner-nozzle hinged to the base, valved airinlets at the lower part of the nozzle, and a gas-supply nipple projecting laterally into the burner-nozzle, having an upwardly-directed jet-opening within the burner-nozzle, and below said air-inlets.

2. The combination of a base, a tubular burner-nozzle hinged to the base,^air-inlets at the lower part of said nozzle, a valved gassupply nipple secured to and projecting into the burner-nozzle and having an outlet below the air-inlets, and an apertured sleeve supported on the nozzle and acting as a valve for the air-ports.

3. The combination of a base, a standard hinged thereto, a valved air-supply nipple secured to said standard, a burner-nozzle se- IOO cured to the standard, an air-blast tube secured centrally within the nozzle' and communicating With the air-supply nipple, by a passage in said standard, laterally-projecting air-inlets in the side of the burner and a gassupply nipple for the burner-nozzle, arranged intermediate said air-inlets.

4. The combination of a base, a standard hinged thereto, an outwardly-extending nozzle mounted on the standard7 an air-blast pipe extending centrally within the nozzle to a point adjacent its outer end, and having an inlet connection in said standard, a valved air-inlet in the nozzle adjacent its lower end7 and a gas-inlet arranged intermediate said air-inlets.

5. A combination blowpipe and Bunsen burnerJ comprising a base, a standard hinged thereto7 a valved air-supply nipple secured to said standard, a burner-nozzle secured to 2o the standard7 an air-tube secured centrally Within the nozzle and communicating with the air-supply nipple, valved air-inlets for the nozzle, a gas-supply nipple in the burnernozzle between the air-su ply nipple and the valved air-inlets, and a detachable Cruciblesupport connected to said burner at its upper en In testimony whereof I aHiX my signature in presence of two witnesses.`

J LOWE YOUNG. Witnesses:

EDWARD D. AULT,

H. C. SMITH. 

